*{
    margin: 0;
    padding: 0;
}
.content{
    display: flex;
    flex-direction: row;
}
.left{
    height: 600px;
    flex: 2;
    background-color: #fff;
}
.right{
    height: 600px;
    flex: 1;
    background-color: #ccc;
}